Apparatus for cleaning gases.



W. AHLEN z H. C. SIEBERT. APPARATUS POR CLEANING GASES,

APPLICATION FILED APRJ, 1909.

Patented Nov. 3G, w99.

3 SHEETS-SHEET l.

VeliTNESSES INVENTORS bom QAM/m W. AHLBN L H. C! SIEBERT, APFARATUS FOR GLBAMNG GASES.

APPLIGATONTILED APR. 7, 1909. 941 @gli ,atented Nov. 30, 1909.

3 sH'BBTs-SHEBT 2.

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W. AHLEN L H, C. SIEBERT.

APPARATUS FOR CLEANING GASES. APPLICATION FILED APRJ, 1909.

Patented Nov. 30, 19691 3 SHEETS-SHEET B..

UNITED STATES PATENTl carica.

WILLIAM AHLEN, F DUQUESNE, AND HERMAN C. SIEBRT, 0F BRLDDOCK, PENNSYLVANXA.

APPARATUS Fon CLEANING casus.

eaigsfai.

' Specification of Letters ,"Patent.y Patntd Non; 30, 1969,

Application :Bled April 7, 1969. Serial No. 488,476.

To all' whom it may concern: a

Be it known that we, WILLIAM AHLE, V`of Du uesne, and HERMAN C. SIEBERT, of Braddoc r, inthe county of Allegheny and State of Pennsylvania, have invented a new .and

`useful Apparatus -or Cleaning `Gases, of

e, tion ;l Fig. 2 is a detail sectional elevation on' which the Afollowin is a full, clear, and, exact description, re erence being had to` the accompanying drawings, forming part of this specification, in whichl Figure l is a sectional elevation showing a vertical gas washerv or .scrubber constructed and arranged in accordance with our inventl a larger scale of the top portion of the gas Washer or scrubber showing the spray pipe' therein formin part of our invention;"F1g. 8 is an invertedplan view of the spray pipe shown in Fig. 2; Fig. 4 is av sectional end elevation on the line -IV-IVlof Fig. 3; Fig. 5 is a sectional end elevation showing a modiiied'form of outlet opening for the .spray pipe forming part of our invention.

Our invention relates to apparatus used toncleanmg gases and more particularly relates to the construction and arrangement of l apparatus used in bringing blast furnace gases into contact with the cleaning iluid to remove finely divided solids from such gases.

1 Unc object of our invention is to provide improved means for distributing and regulating the volume oi' \vatcr,wh ich is the fluid usuallyemployed in such apparatus, delivered into the washer; to provide improved means for overcoming the centrifugal force of the water delivered into the Washer and for changing the direction ofthe flow of the Water.

Another object of our invention is to pro` vide improved means for directing and conducting the gases through the cleaning cham- A further object of the invention is to provide improved means for discharging the solids'removed from the gases during the cleaning operationand the water used for the cleaning operation from the Icleaning' chamber. l

In the drawings 2 represents a vertical gas Washer or scrubber chamber having an outlet opening 3 in the top thereof through which the cleaned gases are discharged from theV Washer. The gas inlet 4- is located on the l'owerend portionof the chamber 2. Mounted in the top portion of the chamber 2 is "a, rotary pipe or hollow sleeve 5a having on its lower Vend a horizontally extending spraying pipe 5 constructed and arranged in accordance with our invention. Thepipe 5EL lis mounted on a suitable bearing 5b so that it can be rotatedcby a suitable driving motor (the motor not torming part of our invention not being Ishown).

Located in a chamber 2 below the spraying arm 5 is a series of grids or screens 6 carried on suitable supports 7, which are secured in placeon th'e shell of the chamber 2 for that purpose. ,4

The spray pipe 5 is provided with a flanged branch inlet opening 8 and extending longitudinally in the spray pipe 5 is a' Athe fluid strikes in .issuing from the spray pipe and by which it is deiiceted in its curse into a substantially horizontal direction from the vertical direction in which it. discharges intothc slotted opening ll. The d'elector l2 is removably secured to the pi pe 5 by means of the boltsl.

It is important that the size of the opening through which the water is distributed can be varied to suit various conditions met with in the operation of the washers or scrubbers, variations in thc volume or pressure of the water supplied at different times requiring openings oi' different widths. To

effect such purpose the adjustable blade 14 is provided which is secured in place between the pipe Sand the adiaceiht flanged surface'y of the deilcctor l2. The blade 11i is provided ivith oblong holes or openings through whichthc bolts extend, these openings being `slotted to enable the blade to be adjusted 'toward and away from the slot lfso as to 'vary the Width or size of the opening through which the iiuid is discharged. The vanos or dcticctors 12 are'provided so that the Water will be delivered in a sheet or hn and the outer ends of the spray pipe rotating liu at a higher velocity tllali the partsnearer the axisI ot rotation., tllese deilctors are taY pel'cd l'l'oln the outer tolvard their inner ends to cause the water to be distributed in a tillll or sheet ot substantiallyv llnit'oi'ni thickness and volunie. 'l'he dctlectors also serve to asin the turning oit' the spray pipe, in this i the blade tft" is adjusted in a vertical plane to var v the. size or lvidtll of the opening it,

'l`lle blade is provided 'with slotted openings through nhich the bolts .lli extend ill hohling the blades in the adjusted position and in this torni the detleetol's or valles are oniitted- The construction ot the pipe otherwise the saine as thatvshown in Figs. l, 3 and t.

As shown in Fig'. l, thc .tower end of the chaniber 2 is provided .vith an amllllai' detlector 15 wllich is secured oil brackets lo' at, a point above the gas inlet opening l and the lower' end ot the washer chamber 2 is' provided with an inwardly and doniiwardly sloping bottoill 17, having a cent 'ally located outlet. The discharge outlet is provided with a discharge pipe 1S, having curved end portions lt and 1S", the outer or dis charge end 18 olf this pipe being arranged to discharge above. the level ot' a pool otl watei' in the ti'ollgll ttl which is located below the chanilier 2 in the pipe 18.

l'll the operation ot our improved appa ratns, the rotary pipe 5 pl'etel'allly is caused to revolve by suitablelnotol'. provided tol' that pu'i'pose. lVater is supplied to the slipply pipe 5" which ttows ilito the horizontal spraying pipe 5. The water on striking the diaphragm or partition t) in thc pipe 5 is directed toward the opposite ends of the horizontal pipe 5 and the partition 9 terniinat ing short of the ends of the pipe 5, the direction of tlow ot the water is changed and is directed from the ends toward the ceilter or aifis ot rotation ot' this pipe, heilig discharged through the opeiiing 11 and as the arni rotates is caused to ttow in a sheet'ot uniform thickness on the grids or screens wllicli are locatedbelow the pipe 5 in the chamber 2.

In the construction shown in Figs. 2, 3 and 4, the water tlowing troni the slot 11 in the pipe 5 strikes the varies or de'tlectors 12, and its direction ot tlow is changed from the vertical direction in which it isdischarged troni the pipe into a substantially horizontal direction. The a'in rotates in a direction away 'from that iik/which the Water l in the gases.

issues t'ron'l the slottl. as the most water l'elpiii'ed at the outer portions ot the washer 2 the tlolv ot water may be regulated by adjusting one end or the other aot the blades, so ini to increase o i' decrease llle width ot' the slots at one end relative to the olilposite enti ot the blade alid in this \\'a v iin'rease the tionv ot water at ditl'el'ent points, in the length ot the slots ill tlle ai'ills. the descending water contacts with the rnlllllln of gases rising upwardly through the cleaning chamber and ettectivcly renioves the tinely divided solids carried in suspension 'the solid materials are deposited ill the bottoni of the rhalnhei' 2 alld are heilig eonstantl)y removed llleret'ronl by the stream oli water tlowing troni the cllaillbei' 2 through the discharge pipe '.l`lle size ot the pipe 1S is proportioned so that' it' is setti-cleaning. the speed of the streanl ot water tloiving' troni the washer beingr slitticient to carryy the heaviest particles of solid materials troni the washer. The discharge end t8 of the pipe lo' is higher than its iiitei'inel'liate portion, in' this way forming a ti'ap which is always open t'oi' the passage ot ltllid alld solid illaterials and providing' `l lwater seal which prevents the escape of gases t'i'onl the cleaning chandler. 'lhe open discharge end 18 ot the pipe t8 is located above the trough 1*.) so as to discharge thereinto allove the level of water contained in the trough.

'l`lle advantages of oilr invention will be apparent to those skilled ill the art. The apparatus is silnple and is easily kept in repair. The use ot tlle revolving ai'ln with` the longitlldinaltv extending 'slot ill lits side ivall eallses'the water lo ldescend ill thclvaslier ill a sheet ot' llnilol'nl thickness aild insures-a nnit'orin supply ot alltel' to' all parts ol the cleaning rllalnllel.A

lly providing the open discharge outlet'. pipe, the water and solid materials being discharged li'oin the apparatus are always visible aild the anlollnt ot' water passing from the. washer can be illalslli'ed it neces sary, while by curving the discharge pipe so that its upper end is above the level ot itsinteril'lediate portion, a seal is provided at all tiines which will prevent the escape of the gases, alid the water and dirt removed froin the gases are heilig constantly ren'loved from the cleaning chamber. The screens or grids in the upper portion of the chamber break up the Water into drops which fall vertically downward in the washer and in this way present a large surface of water to the rising gases. The screens or grids also prevent channels forming in the column of ascending gases, as is the case where the supply of water is not uniform.

Modifications in the construction and arrangement of the apparatus may be made without departing from oilr invention. The

Screens or grids may be omitted, the size and shape of theslots in the rotating arms may be varied, the size of the discharge outlet pipe may be changed as it the pipe is too large it will soon till up withsolid materials to the area Where the remaining opening will be self cleaning.

We claim:

1. In apparatus for cleaning gases, a cleaning chamber having a horizontally extending arm adaptable to a Vertical axia and meanal for supplying tluid `to the arm, said arm having a longituilinalhv ,slotted opening` throughwhieh the tlnid i`: i'liseharged and having means for varying the width of said slot at diii'elent. pointal of its length; sul)- starafially as described.

2. ln apparatus for cleaning gases, a Cleaning chamber having rotary armsv extending horizontally in oppo ite diria-tions. about their axes` ol' rotation, meana i'or rotating Said arms, and mean l'or supplying fluid to the arno, laaid arnn. haring longitudinally .slotted openinga throngh n'hieh llnid is discharged and haring mean.`4 tor varying' the \"idth ot' the .otted openings at dit`- ferent'point.` in their length; `whetantially as describedA ln apparatug tor cleaning gaeea` a cleaning rhamher haring a horizontally eX- tending hollonarm, means tor rotatingaaid arm, and meansy for anppljt'ing lluid tio the arm, said arm haring a longitudinally slotted opi-ning through which lluid is discharged, and means on the arm arranged to vary the width ol said slotted opening at diilerent points in its length; substantially an' deaerihed.

4. ln apparatne for eleaning gases, a cleaning eliamher ha ving a hollow horizontallyl extending arm therein, means for rotating said arm, nieana Jr'or supplying tinid to the arm said arm having a longitudinally extending slotted opening through which fluid is discharged and a detleetor arranged to divert the tten' of liquid issuing from said slot; substantially as deserihed.

:1in apparat-ns for cleaning gases, a.'

cleaning chamber having a horizontally extending arm therein, means for rotating said arm, and means for supplying' fluid to the arm, said arm having a partition therein terminalingeahort of its-ends and arranged to Cause tluid to tlow from the center to its ends and then from its end toward the eenter ot its length; substantially as deseribed.

ln apparatul for cleaning gases, a (-,leaning elianiher having a horizontally extending hollow arm, n'ieans for rotating said ELI/TAM AULEN. HERMAN C. Slll'lllll'l.

Vr'itnesses:

(li-:onen li. New, 'l`. lll. ll/lollownm. 

